<?php

/**
 * Picon Framework
 * http://code.google.com/p/picon-framework/
 *
 * Copyright (C) 2011-2012 Martin Cassidy <martin.cassidy@webquub.com>

 * Picon Framework is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.

 * Picon Framework is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  General Public License for more details.

 * You should have received a copy of the GNU General Public License
 * along with Picon Framework.  If not, see <http://www.gnu.org/licenses/>.
 * */

namespace picon;

/**
 * Stores all of the available component resolvers for use during rendering
 *
 * @author Martin Cassidy
 * @package web/markup/resolver
 */
class ComponentResolverHelper
{
    private static $resolvers;
    
    private static function init()
    {
        if(self::$resolvers==null)
        {
            self::$resolvers = array();
            array_push(self::$resolvers, new HeaderResolver());
            array_push(self::$resolvers, new PanelResolver());
            array_push(self::$resolvers, new ExtendResolver());
            array_push(self::$resolvers, new BorderResolver());
        }
    }
    
    public static function resolve(MarkupContainer $container, ComponentTag &$tag)
    {
        self::init();
        $current = $container;
        $component = null;
        while($current!=null)
        {
            if($current instanceof ComponentResolver)
            {
                $component = $current->resolve($container, $tag);
            }
            if($component!=null)
            {
                return $component;
            }
            $current = $current->getParent();
        }
        
        foreach(self::$resolvers as $resolver)
        {
            $component = $resolver->resolve($container, $tag);
            if($component!=null)
            {
                return $component;
            }
        }
        return null;
    }
}

?>
